package com.zhai.netty.book.chapter03.demon001;

import org.apache.log4j.Logger;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

public class TimeClientHandler031 extends ChannelHandlerAdapter{
	
	private static final Logger logger = Logger.getLogger(TimeClientHandler031.class);
	
	
	private final ByteBuf firstMessage;
	
	public TimeClientHandler031() {
		byte[] req = "你好啊，服务五".getBytes();
		firstMessage = Unpooled.buffer(req.length);
		firstMessage.writeBytes(req);
	}
	
	@Override
	public void channelActive(ChannelHandlerContext ctx) throws Exception {
		ctx.writeAndFlush(firstMessage);
	}
	
	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg)
			throws Exception {
		ByteBuf buf = (ByteBuf) msg;
		byte[] req = new byte[buf.readableBytes()];
		buf.readBytes(req);
		String body = new String(req, "UTF-8");
		System.out.println("server msg "+ body);
		
	}
	
	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
			throws Exception {
		logger.warn("Unexception exception from downstream");
		super.exceptionCaught(ctx, cause);
	}
}
